<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>

    </style>
</head>

<body>
    <div id="app">
        <ul>
            <li v-for="(item,index) in msg">{{item.name}}</li>
        </ul>
        <button @click="change">走一走</button>
    </div>
    <script src="../vue.js"></script>
    <!--  -->
    <script>
        const app = new Vue({
            el: '#app',
            data: {
                msg: [{
                    id: 1,
                    name: '帅哥'
                }, {
                    id: 2,
                    name: '美女'
                }, {
                    id: 3,
                    name: '程序员'
                }]
            },
            methods: {
                change() {
                    this.msg.push(this.msg.shift())
                        // alert(JSON.stringify(this.msg.shift()))

                }
            }
        })
    </script>

</body>

</html>